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The Portuguese navy defeats a joint fleet of the Ottoman Empire, the Republic of Venice, the Sultan of Gujarat, the Mamlûk Burji Sultanate of Egypt, the Zamorin of Calicut, and the Republic of Ragusa at the Battle of Diu in Diu, India.
Battle of the Blacks: Uprising by the black African forces of the Fatimid army, along with a number of Egyptian emirs and commoners, against Saladin.
George Washington resigns as commander-in-chief of the Continental Army at the Maryland State House in Annapolis, Maryland.
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